High tenacity polyethylene fibers and process for producing same

Details High tenacity polyethylene fibers and process for producing same High tenacity polyethylene fibers and process for producing same

1980-01-07

1981-06-30

Kendell, Lorraine T.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

57243, 428364, D02G 300

Patent

active

042763487

ABSTRACT:
Polyethylene yarns having tenacities of at least 12 grams per denier are produced at commercially feasible spinning speeds by a process in which a high density polyethylene having a M.sub.n of at least 20,000 and a M.sub.w of less than 125,000 is extruded through a high temperature spinneret (220.degree.-335.degree. C.) to form yarns which are hot-drawn at a temperature between about 115.degree. and 132.degree. C. The yarns produced by this process are particularly useful as industrial cordage.

REFERENCES:
patent: 2210774 (1940-08-01), Perrin et al.
patent: 3396073 (1968-08-01), Touey et al.
Porter et al., "Polymer Engineering and Science, " Mar. 1976, vol. 16, No. 3 (pp. 200-203).
Porter et al., "Journal of Polymer Science," Polymer Physics Ed., vol. 16 (pp. 1729-1737), 1978.
Porter et al., J.P.S. vol. 13, 1177-1886.
Baranov et al., "Leningrad," vol. 17 (5), 1550-1552 (1973).

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